题目内容：

听下面一段较长对话，回答以下小题。

1.What class are the speakers talking about?

A. Biology.    B. History.    C. Chemistry.

2.What does the man think about the professor?

A. Smart and fun.

B. Easy-going but boring.

C. Demanding but an easy grader.

3.How does the woman feel after hearing about the professor?

A. Worried.    B. Relieved.    C. Angry.